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About Chemistry
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  • Realistic Stage Blood
    You can make realistic non-toxic stage blood using common kitchen ingredients. This blood is thick enough to drip convincingly.

  • Relative Solubility Example Problem
    This example problem demonstrates how to determine the relative solubility of ionic compounds in water.

  • Trans Isomer Definition
    This is the definition of trans isomer along with examples and an illustration of what the trans configuration looks like.

  • Green Fire Whirlwind
    It's easy to make your own tabletop fire whirlwind or twister. Spice it up a bit by using green fire!

  • Does It Matter Where You Get Gas?
    Is there a real difference between different brands of gas and will cheap gas hurt your car? Here's a look at whether it matters where you get gas.

  • How to Preserve a Halloween Jack o Lantern
    Your carved pumpkin or Halloween jack o lantern doesn't have to rot or mold before Halloween! Here is how to preserve a jack o lantern so that it will last for weeks instead of days.

  • How Does the Fortune Teller Miracle Fish Work?
    If you place the plastic Fortune Teller Miracle Fish in your hand it will bend and wiggle. Learn the science of how the Fortune Teller fish works.

  • What Is the Nobel Prize Medal Made Of?
    The Nobel Prize medal looks like gold, but what is it really made of? Here's the answer to this common question about the composition of the Nobel Prize medal.

  • What Is the Most Metallic Element?
    Learn about the most metallic element and the metallic properties of the elements.

  • Reasons Why Homework Is Good and Sometimes Bad
    Here's a look at the best reasons why homework is good, especially for sciences like chemistry.

  • Standard Molar Entropy
    Learn what standard molar entropy is and how to predict whether a chemical reaction will cause a positive or negative delta S or change in entropy.

  • Why You Shouldn't Mix Bleach and Ammonia
    Mixing bleach and ammonia is extremely dangerous, since toxic vapors will be produced. Here are the chemical reactions involved and first aid advice.

  • Mixing Bleach and Vinegar
    Mixing bleach and vinegar is a bad idea because it produces toxic chlorine gas. Here's what you should know about mixing bleach and vinegar, before you try it.

  • What Is Borax and Where Can You Get It?
    Borax is a common household and commercial chemical. Here's a look at what borax is, some facts about borax and how you can get borax.

  • What Is the Difference Between Independent and Dependent Variables?
    The difference between independent and dependent variables in a scientific experiment is which variable is being measured. Here's an explanation of how to tell these critical variables apart.

  • How Blue Lava Works
    Have you seen the images of blue lava from the Indonesian volcano? It's not actually lava at all and you don't need to travel to Indonesia to see it.

  • Can You Balance an Egg on the Equinox?
    Find out whether the urban legend that you can balance an egg on end on the equinox is true or not.

  • What Would Happen If Earth's Atmosphere Vanished?
    Have you ever wondered what would happen if Earth's atmosphere suddenly vanished? Would life survive? Would humans? Here's the answer.

  • Periodic Table Trends
    It's called a periodic table for a reason. The table part is pretty obvious, but can you name the periodic table trends? Here's an explanation of periodicity.

  • Why Do Atoms Bond?
    Have you ever wondered why atoms form chemical bonds with other atoms? Here's the scientific reason and an explanation of stability.


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